I need help with a very old security system!

Hello, i’m the IT manager for a medium sized company, we have a small office with a jurassic era security system.

The information i could find on the web is:

Brand: Testene Electronic

Year: Max 2002 (but could be older)

Model Nr.: Ts-C/4EPK

Problem: There’s a yellow light on the “INS DISINS” indicator.

I’ll leave a reference picture here:


Any help is extremely appreciated since i have no clue where else to search, thank you!

submitted by /u/in5ane_10
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